A mate of mine is working on a DIY Hadoop cluster, for learning. Rather that souce “X” servers to build a cluster, and the fact its a learning device, he has cobbled up a couple of G5 DL380’s and for disk, built a “TAJBOD”
Here are his comments (Name supressed!)
Thought you may appreciate the low tech engineering approach here for a tight @arse jbod array: standard sata drives housed on a made from scrap jbod shelf ( 10 minutes of careful routing to make the slots in the chipboard ) and sata extension cables to join the dots. Power for the drives is directly from the server and the RAID is setup by the internal P400 controller, as far as the server is concerned these are just ‘internal’ disks. Best of all it just works!